Google has made some of its more dramatic upgrades to its core search product in recent months. First, in September, came Google Instant, which surfaced results as a user typed out his query. Now, the firm is adding image previews, so users can actually see different elements of a website before they click through.

On Tuesday morning Google (NASDAQ: GOOG) rolled out an update that it's calling "instant previews," which displays an image of the sections of the website that Google deems relevant next to the link and text snippet served up by the Instant feature.